QOS for multicst traffic

Dear Experts,

I would like to prioritise multicast & unicast  traffic through my STM 1 ethernet link on my Cisco 3750 Switch. below the is the requirement. could you please help me to configure in a best method way so that i can acheive the same .

    QoS  requirements:

       Multicast : DSCP AF41

       Unicast   : DSCP AF42
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below is the code for the QoS to aply it you use the " service-policy input MULTI_UNI" or  "service-policy output MULTI_UNI" It is ussually best practice to mark the trafic closest to the source on an inbound direction. That way as it leaves the interface those markings can be used to queue the traffic as desired.
class-map match-any MUTICAST
 match access-group 1
class-map match-all unicast_traffic
 match access-group 2
class-map match-all multicast_traffic
 match access-group 1
policy-map MULTI_UNI
 class multicast_traffic
  set dscp af41
 class unicast_traffic
  set dscp af42
access-list 1 permit
access-list 2 deny
access-list 2 permit any

Open in new window

oops ignore the extra line thought I deleted it

class-map match-any MUTICAST
 match access-group 1

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ssshibuAuthor Commented:
Dear bkepford,

Thanks  a ton for your quick reply.

Now i would like to configure multicast multipath and stacking in switches in my side. please find attached connectivity diagram.  Could you please help me to configure these features in  my switches

appreciate your kind help.

ssshibuAuthor Commented:
we are running OSPF as our IGP. cost of both links will be configured as 10 and STM links has been cofnigured as point to point link.

Not sure what you are asking more detail would be needed. IP multicast is a layer 3 function and you need to have a layer 3 image to run it on a switch. to enable multicast on a switch use the "ip multicast-routing distributed" command and then enable the interfaces with the "ip pim {dense-mode | sparse-mode | sparse-dense-mode} " depending on which mode you want to run it in.

Just as a note usually it is better to award points and close one thread and open a new discussion thread when you change questions that way more experts will see the new discussion.  
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